Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface, showing my new design; and,

FIG. 2 is a second embodiment thereof.

The broken lines showing a device illustrates environment, whereas the broken lines showing a display screen and portions of the graphical user interface illustrate portions of the article. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 